Avoid "will not stay shared" warnings.

[p5sagit/p5-mst-13.2.git] / utf8.c

diff --git a/utf8.c b/utf8.c
index 9d593bd..d73809c 100644 (file)
--- a/utf8.c
+++ b/utf8.c
@@ -1344,7 +1344,7 @@ Perl_swash_fetch(pTHX_ SV *sv, U8 *ptr, bool do_utf8)
     U32 off;
     STRLEN slen;
     STRLEN needents;
-    U8 *tmps;
+    U8 *tmps = NULL;
     U32 bit;
     SV *retval;
     U8 tmputf8[2];
@@ -1515,4 +1515,31 @@ Perl_utf8n_to_uvchr(pTHX_ U8 *s, STRLEN curlen, STRLEN *retlen, U32 flags)
     return UNI_TO_NATIVE(uv);
 }
 
+char *
+Perl_pv_uni_display(pTHX_ SV *dsv, U8 *spv, STRLEN len, STRLEN pvlim, UV flags)
+{
+    int truncated = 0;
+    char *s, *e;
 
+    sv_setpvn(dsv, "", 0);
+    for (s = (char *)spv, e = s + len; s < e; s += UTF8SKIP(s)) {
+        UV u;
+        if (pvlim && SvCUR(dsv) >= pvlim) {
+             truncated++;
+             break;
+        }
+        u = utf8_to_uvchr((U8*)s, 0);
+        Perl_sv_catpvf(aTHX_ dsv, "\\x{%"UVxf"}", u);
+    }
+    if (truncated)
+        sv_catpvn(dsv, "...", 3);
+    
+    return SvPVX(dsv);
+}
+
+char *
+Perl_sv_uni_display(pTHX_ SV *dsv, SV *ssv, STRLEN pvlim, UV flags)
+{
+  return Perl_pv_uni_display(aTHX_ dsv, (U8*)SvPVX(ssv), SvCUR(ssv),
+                            pvlim, flags);
+}